import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/Login', component: Login },
    { path: '/home', component: Home }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, form, next) => {
  // to将要访问的路径
  // form代表从哪个路径跳转
  // next是一个函数 表示放行
  // next()放行   next('/login')强制跳转

  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
